On this date in 1492, Christopher Columbus began his journey to North America. Also on this date in 1963, the "Fab-Four" performed their final show at the legendary Cavern Club.

On this date in 1790, the first patent was issued in the United States. And on this date in 2012, a blackout left 600 Million people without power in India.

It was on this date in 1965, that President Johnson signed the law ensuring healthcare for older Americans. And on this date in 1975, labor leader Jimmy Hoffa officially went missing.

It was on this date in 1928, that test footage was released for Disney's most iconic character. And on this date in 1976, David Berkowitz began his terror spree on New York City.

On this date in 1945, a B-25 Bomber slammed into one of New York's most iconic buildings. And on this date in 2016, a human fossil was found in South Africa that shed some light on the state of cancer. Editor's note: Today's edition of Mark's Almanac originally contained audio from a period newsreel which included a derogatory and offensive term for Japanese people. That section of audio has been removed from this episode. WKSU regrets the inclusion of this audio clip and apologizes for its use.

On this date in 1974, the U.S. House Judiciary Committee recommended President Nixon be impeached. And on this date in 1996, Atlanta woke to a blast in Olympic Centennial Park.

On this date in 1880, the first ever hydroelectric power plant began service in Michigan. And on this date in 1959, Vice President Nixon argued for the merits of capitalism in the Kitchen Debate.

It was on this date in 1878, the notorius Black Bart struck again. And in 1973, President Nixon's tape recordings became the center of national controversy.

On this date in 1796, Moses Cleaveland landed at the mouth of the Cuyahoga River and started a new city. And in 1991, one of the most prolific serial killers was finally caught.

On this date in 1853, one of the most recognizeable parks in New York got its start. And in 1880, a compressed air tunnel accident killed 20.